When ____ to compare the education system of China and Britain, the professor gave no answer．
| A．ask | B．asking | C．asked | D．to ask |
We hardly believe the news is true,________
| A．do we | B．don’t we | C．is it | D．isn’t it |
-- could you please tell me the answer to the question?
-- __.!It is not my style to help the people cheat.
| A．No problem | B．No way | C．Not at all | D．No doubt |
He is afraid to face the difficulty he thinks he’ll have the driving test tomorrow; he finds it difficult rid of the worries．
| A．passed；got | B．passing；to get |
| C．to pass；getting | D．in passing；in getting |
After the long journey, the Smiths returned home, ____.
| A．safe but tired | B．safely but tired |
| C．safe and tiring | D．safely and tiring |
Not everyone has realized what_______ important part the balance of________ nature plays in their life.
| A．an；the | B．/；the | C．an；/ | D．the；/ |